Acceleration on a Frictionless Wedge

[nobodyuknow]

Homework Statement

Two masses m1 and m2 (m1 > m2) are connected over a wedge shaped block. Assuming both inclined planes are frictionless along with frictionless and massless pulley, calculate an expression for the acceleration of the system.

Here's what it sort of looks like: http://prntscr.com/df5lh

Homework Equations

F = mgsinθ ( I think )

The Attempt at a Solution

Finding F of both blocks, and minusing one from the other.

 

[CAF123]

Take each block separately and draw the free body diagrams for each, using an appropriate coordinate system. If the pulley is frictionless and mass less, we have a 'no slip' circumstance, which means if $m_1$ accelerates some distance down the incline, $m_2$ will accelerate up the other incline at same rate. This will help when equating expressions later on.